This module is subject to page protection. It is a highly visible module in use by a very large number of pages, or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing.
localp={}-- Counting function accepting a string haystack and table of needleslocalfunctioncount(haystack,needles)localnumber=0-- While we have needles to look forforindex,needleinipairs(needles)do-- find them all in our haystackforminstring.gmatch(haystack,needle)donumber=number+1endendreturnnumberend-- Function takes any number of # delimited page names and section level numbersfunctionp.sections(frame)localtotal=0localneedles={}localhaystack=''-- Separate page names from # delimited string into tablelocalpages=mw.text.split(frame.args[1],'%s?#%s?')-- Separate whitespace delimited section level numbers into tablelocallevels=mw.text.split(frame.args['level'],'%s*')-- Iterate through levelsforlevelinmw.text.gsplit(table.concat(levels),'')do-- and add the level needle to needlesneedles[#needles+1]='\n'..string.rep('=',tonumber(level))..'[^=]'end-- For each page name in pagesforindex,pageinipairs(pages)do-- create a haystack to search from the page contenthaystack=mw.title.new(page):getContent()-- If we've requested the content of a legitimate pageifhaystackthen--[[ pass the raw markup and needles to count and add the return to total ]]total=total+count(haystack,needles)endend--[[ then return how many sections of the required level are in all the pages passed ]]returntotalendreturnp